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High prevalence of Leucocytozoon parasites in fresh water breeding gulls [PDF]
Journal of Ornithology, 2015 Seabirds are regarded as a group of species with relatively low levels or even complete lack of blood parasites. We used PCR to amplify a DNA fragment from the cytochrome b gene of the parasites to search for infections of the genera Plasmodium ...
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Gametocytogenesis of Leucocytozoon Smithi
Journal of Eukaryotic Microbiology, 1993ABSTRACT. Development of young gamelocytes of Leucocytozoon smithi into morphologically mature forms was studied using electron microscopy. Gametocytogenesis began on day seven post inoculation when merozoites, released from ruptured hepatic schizonts, developed into gametocytes within mononuclear phagocytes or leukocytes (monocytes or lymphocytes). No
E J, Steele, G P, Noblet
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1974
Publisher Summary This chapter describes Leucocytozoon. It discusses the prevalence, taxonomy, life cycles, ultrastructure, pathogenesis, and pathology of these avian blood parasites, together with treatment in terms of prevention and control, immunity and cultivation.
A M, Fallis, S S, Desser, R A, Khan
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Publisher Summary This chapter describes Leucocytozoon. It discusses the prevalence, taxonomy, life cycles, ultrastructure, pathogenesis, and pathology of these avian blood parasites, together with treatment in terms of prevention and control, immunity and cultivation.
A M, Fallis, S S, Desser, R A, Khan
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Early Schizonts of Leucocytozoon caulleryi
The Journal of Parasitology, 1990Sporozoites of Leucocytozoon caulleryi were inoculated intravenously into 26-day-old specific pathogen-free chickens. Six days after inoculation, early schizonts were detected in lung, spleen, and thymus. They existed separately and were spherical or ovoid, 30-35 microns in diameter, and had well defined walls.
T, Isobe, K, Akiba
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Crystalline inclusions in Leucocytozoon simondi
Canadian Journal of Zoology, 1971Vacuoles have been observed in haemosporidian ookinetes fixed in methanol and stained with Giemsa's (5) (Fig. 1). Electron microscopy studies on sporogony of Leucocytozoon simondi indicate that the "vacuoles" contain accumulations of crystalline material (8) (Fig. 3).
S S, Desser, W D, Trefiak
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Leucocytozoon (Haemosporida; Leucocytozoidae) of the Falconiformes
Canadian Journal of Zoology, 1977Falconiform-inhabiting species of Leucocytozoon are reviewed and a checklist of Falconiformes known to harbor Leucocytozoon is included. Morphological measurements were made from 11 falconiform species to examine the interspecific and intraspecific variations. These formed the basis for the redescription of gametocytes of L. toddi Sambon.
E C, Greiner, A A, Kocan
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Sporogonic Development of Leucocytozoon smithi
The Journal of Protozoology, 1992The sporogonic development of Leucocytozoon smithi in its black fly vector was studied by light and electron microscopy and was compared with that of other haemosporidians. Within 18 to 24 h after ingestion of gametocytes by black flies, ookinetes passing through the midgut epithelium were observed.
E J, Steele, G P, Noblet, R, Noblet
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อาการทางประสาทในไก่กระทงเนื่องจากโปรโตซัวในเม็ดเลือด (Leucocytozoon caulleryi)
The Thai Journal of Veterinary Medicine, 1987ไก่กระทงจำนวน 3 ฝูง อายุ 20-30 วัน แสดงอาการโลหิตจางอย่างรุนแรง เบื่ออาหารไม่มีแรง มีอาการทางประสาท ชัก แล้วตาย อัตราป่วย 100% และอัตราตาย 2.2-2.3% จากการตรวจฟิล์มเลือดบางที่ย้อมด้วยสี Giemsa wu macrogametocyte และ microgametocyte ของ Leycocytozoon caulleryi อยู่ในเลือด ลักษณะทางพยาธิวิทยาพบว่าม้ามโตกว่าปกติ มีเลือดออกในอวัยวะต่าง ๆ ทั่วไป ปอดบวม ...
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Schizogonic Development of Leucocytozoon smithi
The Journal of Protozoology, 1992ABSTRACT The schizogonic development of Leucocytozoon smithi in the liver of experimentally infected turkey poults was examined by electron microscopy. Following intraperitoneal injection, sporozoites migrated to the liver and entered hepatic cells to become intracellular trophozoites.
E J, Steele, G P, Noblet
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Leucocytozoon Disease of Turkeys
World's Poultry Science Journal, 1977Leucocytozoon disease of turkeys, like that of other avian species, is caused by a blood protozoan that has a complex life cycle involving development in the bird (asexual) and in an intermediate h...
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